Comments for Globe Trotting

Comment on Problem set page 1 TD solution by Saad.P

Saad.P — Wed, 22 Feb 2012 06:52:19 +0000

Thank you sir this is a great help.

Comment on Problem set page 1 TD solution by Vinstan

Vinstan — Wed, 22 Feb 2012 03:10:07 +0000

Check the thermodynamics page a video has been posted

Comment on Problem set page 1 TD solution by Rakunan

Rakunan — Tue, 21 Feb 2012 22:37:14 +0000

How would you calculate the enthalpy change for the reaction H + Br—>2HBr. Given that the bond energies of H-H, Br-Br and H-Br are 435, 192 and 364 kj/mol respectively

Comment on Problem set page 1 TD solution by abdullah

abdullah — Tue, 21 Feb 2012 05:00:02 +0000

Thank you for this!! very helpful

Comment on Review Answers 4U 12 by Vinstan

Vinstan — Tue, 31 Jan 2012 02:36:28 +0000

H2C2O4 is a diprotic acid
CaVa/1 = CbVb/2
1 = mole coefficient of acid na
2 – mole coefficient of NaOH in the balanced equation nb

Comment on Review Answers 4U 02 by Vinstan

Vinstan — Tue, 31 Jan 2012 02:34:27 +0000

You may be right

Comment on Review Answers 4U 12 by Asma Ali

Asma Ali — Tue, 31 Jan 2012 01:53:02 +0000

Why did you multiply it by moles
# 45, shouldn’t it just be CaVa=CbVb ?

Comment on Review Answers 4U 02 by LARAB

LARAB — Tue, 31 Jan 2012 00:35:28 +0000

i did.. but in this case you dont have to flip it ?

Comment on Review Answers 4U 02 by Vinstan

Vinstan — Sat, 28 Jan 2012 20:25:40 +0000

Review Hess’s law and check out the rules for using equations to obtain the target equation.

Comment on iPad in the classroom by Vinstan

Vinstan — Sat, 28 Jan 2012 20:24:27 +0000

Check thermodynamics page